DESCRIPTION

Guar Gum occurs as a white to yellow-white powder. It is a gum obtained from the ground endosperms of Cyamopsis tetragonolobus (L.) Taub (Fam. Leguminosae) (synonym Cyamopsis psoraloides [Lam.] D.C.). It consists chiefly of a high molecular weight polysaccharide composed of galactose and mannose units and may be described chemically as a galactomannan. It is dispersible in either hot or cold water, forming a sol, having a pH between 5.4 and 7.0, that may be converted to a gel by the addition of small amounts of sodium borate.